Cash-register.



-No. 689,97l. Patented- Dec. 3|, 19m.

- E. H. JAHNZ.

I cAs-H REGISTER.

(Application fil ed Aug. 29, 1901.)

(No Model.)

II II I 11 11117! 111 1 1111 1/ 11/ 1| WITNESSE-ZZ ATTORNEYS.

UNITED ST TES;

PATENT OFFICE.

ERWIN HERMANN JAHNZ, or WESTEND, NEAR BERLIN, GERMANY, As- SIGNOR TDEUTSOHE TE EPHONWERKE R. STOCK & 00., GESELL- SCHAFT MIT BEsoHRANKTERHAFTUNG, 0E BERLIN, GERMANY.

CASH-REGISTER.

srEoIFicAtrIoN forming art of Letters Patent o. 689,971, dated December31, 1901.

Application filed August 29, 1901. Serial No. 73,6 54. (1% model.)

To all whom it may concern:

Be it known that I, ERWINHERMANN J AHNZ, engineer, a subject of the Kingof Prussia, 'German Emperor, residing atWestend, near Berlin, Germany,have invented certain new and useful Improvements in Gash-Registers; andI do hereby declare that the following is a clear and exact descriptionof the same.

In many cash tradesfor instance, public houses, dze theindividualamounts which the purchaser pays are always small. over, they usuallyincrease by five cents at a time. For this purpose it is quitesufficient 'for the cash-register to have only the following elevenkeys, viz: a five-cent key and a dollar key and nine other keys for tencents,

twenty cents, &c., upto ninety cents. Owing to the small number of keyscertain advan- 'tages are attained in the present invention which areunattainable in the much more co m-. plicated cash-registers of theusual kind. The dollar and the five-cent keys are each provided with twolevers on opposite sides of the register and connected with each other.It is thus possible, on the one hand, to show exactly the same numericalrecord on the sellers side as on the purchasers, and, on the other'hand, to couple the five-cent key with the others in a very simplemanner.

The improved cash-register is illustrated in the accompanying drawings,in which Figure 1 is a side elevation, and Fig. 2 a

plan view. Figs. 3 and 4 show details of the mechanism. I

The lever a of the five-cent key is firmly lodged on one end of theshaft 19, to the other end of which'is attached a second lever c.'

The two levers a and 0 have arms d, which support the bar e. A rigidframe is'thus formed, comprising the levers a c, the shaft 12, and thebar 0. Over the shaft 1) is placed a tube f, Fig. 4, which incloses withan oval slot one lever g of the dollar-key. On the tubef is keyed a disk0, with a lateral pin 19, which engages a small slot q in the lever 91.In consequence of this arrangement itis possible to pull out the key g;but, on the other hand, the tube f is forced. to turn every time the key9 is depressed. The second lever h of the dollar-key is keyed on thetube f. The

More- I other key-leverst', Fig. 3, are independently pivoted on thetube f, and for the purpose of coupling with thekey-couplerj are movablein the direction of a recess It, provided in their ends, as is moreparticularly described in my United States Letters Patent No. 676,386.If the five-cent key or the dollarkey is depressed, a lever on the rightside of the register and at the same time another lever on the left side'are raised. In this manner indicating-signals are raised in the usualmanner, always two being raised. Of these twoindicators of the five-centkeythat raised by the lever 01. is only visible from the salesmans sideand that raised by the-lever 6 only from the purchasers side, andlikewise with the dollar-key. Consequently on both sides of the registerthe figures appear correctlyfor instance, $1. and not, as was the caseinformer cash-registers, on the purchasers side correctly-viz., $1.65 andon the salesmans side 56.135. The bar e according to the presentinvention serves at the same time for coupling the key-levers i with thefive-cent key. For this purpose the arms Z of the levers i, whichcooperate in the usual manner with ratchet-pendulums m,are provided withprojections n. These latter engage during ,the longitudinal movement ofthe levers 11 over the bar 6. If it be desired to register five cents,twenty cents, thirty cents, &c., or one dollar, it is merely necessaryto depress the corresponding key,withoutdrawingit out. If, on the otherhand, it is wished to register the sum of twenty-five cents, forinstance, the twenty-cent key is pulled out and then pressed down; Thefive-cent key does not then require to be actuated direct, as it isautomatically depressed by the projection n of the twenty-cent key. Theleverg of the dollar-key has no projection n. If it is desired toregister a sum over one dollar-for instance, one dollar and thirtycents-the dollar-key is preferably first pulled out and the thirtycentkey depressed. The dollar-key is thereby taken along with it by means ofthe ,keycoupler. If it is desired to register one dollar and thirty-fivecents, the dollar-key and the thirty-cent key are first pulled and thenthe latter pressed down or the thirty-cent key first pulled out and thedollar-key depressed. Both the keys are thus connected by means of thekey-coupler. The five-cent key is taken along by means of the projectionn of the drawn-out thirty-cent key. If there were also a projection '21on the lever g of the dollarkey, the simple coupling of the dollar-keywith the thirty-cent key above described would not be possible. Bypulling out the dollar-key there would then be added to the value of thekey next depressed one dollar and five cents instead of one dollar.

7 Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

